Embolic protection device
First Claim
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1. An embolic protection device for collecting embolic debris within a body vessel having an inner wall, the embolic protection device comprising:
- a tubular frame having a lumen and a longitudinal axis, wherein a portion of the frame forms an annular closed loop having a collapsed state and an opened state;
a telescoping portion having an end and being slidably received within the lumen of the closed loop of the frame to open the closed loop from the collapsed state to the opened state;
a connecting portion including a first portion radially connected to the tubular frame and a second portion extending from the first portion to connect to the closed loop, the second portion being disposed coaxially with the tubular frame, the first portion being radially off-set from the centerpoint; and
a filter connected to the frame to collect the embolic debris, the filter having a proximally located mouth portion, the annular closed loop being positioned within the filter to open the mouth portion towards the inner wall of the body vessel;
wherein a radius of the opened state closed loop is adjustable based on a force applied to the end the telescoping portion by a fluid within the lumen of the frame, the force moving the telescoping portion along the longitudinal axis of the tubular frame with the fluid flowing from the connecting portion to the tubular frame.
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Abstract
An embolic protection device is provided for deployment within a body vessel to collect embolic debris there from. The device includes a filter for collecting the embolic debris and a frame for supporting the filter. The frame generally defines a closed loop that has a collapsed state and an opened state. Furthermore, the frame includes a tube portion that receives an opening means to open the closed loop from the collapsed state to the opened state.
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Citations
21 Claims
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1. An embolic protection device for collecting embolic debris within a body vessel having an inner wall, the embolic protection device comprising:
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a tubular frame having a lumen and a longitudinal axis, wherein a portion of the frame forms an annular closed loop having a collapsed state and an opened state; a telescoping portion having an end and being slidably received within the lumen of the closed loop of the frame to open the closed loop from the collapsed state to the opened state; a connecting portion including a first portion radially connected to the tubular frame and a second portion extending from the first portion to connect to the closed loop, the second portion being disposed coaxially with the tubular frame, the first portion being radially off-set from the centerpoint; and a filter connected to the frame to collect the embolic debris, the filter having a proximally located mouth portion, the annular closed loop being positioned within the filter to open the mouth portion towards the inner wall of the body vessel; wherein a radius of the opened state closed loop is adjustable based on a force applied to the end the telescoping portion by a fluid within the lumen of the frame, the force moving the telescoping portion along the longitudinal axis of the tubular frame with the fluid flowing from the connecting portion to the tubular frame. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 17, 18)
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10. An embolic protection device for collecting embolic debris within a body vessel having an inner wall, the embolic protection device comprising:
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a tubular frame having a centerpoint, a lumen, and a longitudinal axis, wherein a portion of the frame forms an annular closed loop having a collapsed state and an opened state, the lumen configured to receive a fluid to inflate the closed loop into the opened state; a connecting portion including a first portion radially connected to the tubular frame and a second portion disposed coaxially with the tubular frame, the first portion being one of generally intersecting the centerpoint and radially off-set from the centerpoint; and a filter connected to the frame to collect the embolic debris, the filter having a proximally located mouth portion, the annular closed loop being positioned within the filter to open the mouth portion towards the inner wall of the body vessel; the frame including a telescoping portion having an end and being slidably received within the lumen of the closed loop such that a radius of the opened state closed loop is adjustable based on a force applied to the end the telescoping portion by the fluid that flows from the connecting portion to the tubular frame, the force moving the telescoping portion along the longitudinal axis of the tubular frame. - View Dependent Claims (11, 12, 13, 14, 19, 21)
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15. An embolic protection device for collecting embolic debris within a body vessel, the embolic protection device comprising:
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a tubular frame having a lumen and a longitudinal axis, wherein a portion of the frame forms an annular closed loop having a collapsed state and an opened state, the lumen of the frame configured to receive a fluid; a connecting portion including a first portion radially connected to the tubular frame and a second portion disposed coaxially with the tubular frame, the first portion being one of generally intersecting the centerpoint and radially off-set from the centerpoint; and an opening member having an end and being received by the lumen of the closed loop of the frame to open the closed loop into the opened state based on a force applied to the end of the opening member by the fluid that flows from the connecting portion to the tubular frame, the force moving the opening member along the longitudinal axis of the tubular frame; and a filter coupled with the closed loop to collect the embolic debris, the filter having a proximally located mouth portion, the annular closed loop being positioned within the filter to open the mouth portion towards the inner wall of the body vessel. - View Dependent Claims (16, 20)
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Specification